The Motorola PMAE4070A is a stubby UHF (440-490MHz) antenna compatible with:
R2, R5, XPR3300e, XPR3500; XPR3500e, XPR7350, XPR7350e, XPR7550, XPR7550e, DP3441e, DP3661e, DEP550e, DEP570e, DP2400e, DP2600e